Cavity wall insulation can cause damp, but it’s worth assessing whether your home is at risk by using the checklist below. Also ask any potential installer about these factors before committing to the work.
Damp could occur in properties as a result of cavity wall insulation if there is a combination of these factors:
Published guidance by the Building Research Establishment says that in these cases there is ‘an increased risk of rain penetration if a cavity is fully filled with insulation’. Rain could penetrate the outer wall, bridge the cavity via the insulation material and transfer moisture to internal walls, causing damp.
The data we use to work out energy and water costs come from a range of reliable international sources to give an average figure. Figures are rounded up or down to the nearest whole number.
* Total amounts potentially saved do not include lighting in individual rooms, or use of secondary heating.
EcoFrenzy has researched the market and to the best of our knowledge, figures and data are accurate at the time of publication.
EcoFrenzy is not responsible for any inaccuracies and will not engage in correspondence, but will update facts and figures when necessary or appropriate.